// Copyright 2014 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "src/compiler/opcodes.h"

#include <algorithm>
#include <ostream>

#include "src/base/macros.h"

namespace v8 {
namespace internal {
    namespace compiler {

        namespace {

            char const* const kMnemonics[] = {
#define DECLARE_MNEMONIC(x) #x,
                ALL_OP_LIST(DECLARE_MNEMONIC)
#undef DECLARE_MNEMONIC
                    "UnknownOpcode"
            };

        } // namespace

        // static
        char const* IrOpcode::Mnemonic(Value value)
        {
            DCHECK_LE(0, static_cast<int>(value));
            DCHECK_LE(static_cast<int>(value), IrOpcode::Value::kLast);
            size_t const n = std::min<size_t>(value, arraysize(kMnemonics) - 1);
            return kMnemonics[n];
        }

        std::ostream& operator<<(std::ostream& os, IrOpcode::Value opcode)
        {
            return os << IrOpcode::Mnemonic(opcode);
        }

    } // namespace compiler
} // namespace internal
} // namespace v8
